AP Physics 1
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20 Terms
vector
quantities that are described by a magnitude and direction + is direction aware
scalar
quantities that are described only by a magnitude(numerical value), without any direction.
distance
the total length of the path traveled, regardless of direction.
speed
the rate at which an object covers distance, regardless of direction.
velocity
the speed of an object in a specified direction.
vector
quantities that are described by a magnitude and direction + is direction aware.
scalar
quantities that are described only by a magnitude(numerical value), without any direction.
distance
the total length of the path traveled, regardless of direction.
displacement
A vector quantity representing the change in position of an object from its initial to final location.
speed
the rate at which an object covers distance, regardless of direction.
velocity
A vector quantity that describes both the speed and direction of an object's motion.
acceleration(vector quantity)
The rate of change of velocity with respect to time.
magnitude
The size or amount of a measured quantity, which can vary depending on the observer's reference frame.
position
A vector quantity describing the location of an object relative to a reference point.
constant acceleration
Motion in which an object's acceleration remains the same throughout the time interval being analyzed.
gravitational acceleration
The constant downward acceleration of objects near Earth's surface due to gravity, approximately 10 m/s².
inertial reference frame
A reference frame in which Newton's laws of motion apply; a frame that is either at rest or moving at constant velocity.
Newton’s 1st Law
An object at rest stays at rest and an object in motion stays in motion with the same speed and direction unless acted upon by an unbalanced force.
Newton’s 2nd Law
The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
Newton’s 3rd Law
Every action has an equal and opposite reaction.